diff --git a/docs/GETTING_STARTED.md b/docs/GETTING_STARTED.md
index 13a287632f5e40e01f11dea4bbfc9302b8d80d73..e63882efedac75a47e935c9ba263e0eaf7009a7b 100644
--- a/docs/GETTING_STARTED.md
+++ b/docs/GETTING_STARTED.md
@@ -443,7 +443,7 @@ class MobileNet(nn.Module):
     def __init__(self, arg1, arg2):
         pass
 
-    def forward(x):  # should return a tuple
+    def forward(self, x):  # should return a tuple
         pass
 
     def init_weights(self, pretrained=None):